Performance and noise analysis of capacitive silicon microphones using tailored system-level simulation

T. Kuenzig, G. Schrag, A. Dehe, G. Wachutka

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

10 Scopus citations

Abstract

A fully coupled fluidic-electro-mechanical system-level model has been assembled and applied to existing and novel silicon microphone designs. Distributed and non-linear effects like fluidic damping and electrostatic forces and their impact on the overall system performance have been investigated. All relevant contributions like the packageinduced acoustical effects and the electronic circuitry for biasing and read-out are included as well. Employing the fluctuation-dissipation theorem to our model we are able to predict and discriminate the noise contribution of single microphone regions in order to suggest design measures for the enhancement of the total signal-to-noise ratio (SNR) of the device. Dedicated calibration and validation of the single submodels by laser-vibrometric measurements assure the accuracy and predictive power of the presented model.

Original languageEnglish
Title of host publication2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2192-2195
Number of pages4
ISBN (Electronic)9781479989553
DOIs
StatePublished - 5 Aug 2015
Event18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015 - Anchorage, United States
Duration: 21 Jun 201525 Jun 2015

Publication series

Name2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015

Conference

Conference18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015
Country/TerritoryUnited States
CityAnchorage
Period21/06/1525/06/15

Keywords

  • Silicon microphone
  • fluidic noise
  • modeling
  • signal-to-noise ratio (SNR)
  • system simulation

Fingerprint

Dive into the research topics of 'Performance and noise analysis of capacitive silicon microphones using tailored system-level simulation'. Together they form a unique fingerprint.

Cite this